diff --git a/.gitignore b/.gitignore
index bc8a670..d420f37 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,3 @@
-.idea/*
\ No newline at end of file
+.idea/*
+vendor/
+composer.lock
\ No newline at end of file
diff --git a/README.md b/README.md
index ec399b8..3e2d5bd 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@ You can use this library to track changes to Doctrine Entities. Use annotations
  * @Column(type="string")
  * @WatchedField // <-- Watcher now tracks changes related to this field
  */
-protected $emailAddress;
+protected string $emailAddress;
 ```
 
 ***
@@ -96,7 +96,7 @@ Bugs and feature request are tracked on GitHub.
  
 ## ToDo
 * Use interfaces for everything
-* Easy Symfony4 integration
+* Easy Symfony integration
 * Write tests
 * Optimize performance (group changes?)
  
diff --git a/composer.json b/composer.json
index 1d92efe..70afaf9 100644
--- a/composer.json
+++ b/composer.json
@@ -16,8 +16,8 @@
     }
   ],
   "require": {
-    "php": "^5.5 || ^7.0",
-    "doctrine/orm": "2.*",
+    "php": "^7.3 || ^8.0",
+    "doctrine/orm": "2.14.*",
     "doctrine/annotations": "1.*",
     "psr/log": "^1.0",
     "ext-mbstring": "*"
diff --git a/src/Watcher/Annotations/WatchedField.php b/src/Watcher/Annotations/WatchedField.php
index 843bd2a..e423aa8 100644
--- a/src/Watcher/Annotations/WatchedField.php
+++ b/src/Watcher/Annotations/WatchedField.php
@@ -3,13 +3,14 @@
 namespace Watcher\Annotations;
 
 use Doctrine\ORM\Mapping\Annotation;
+use Doctrine\ORM\Mapping\MappingAttribute;
 use Watcher\ValueFormatter;
 
 /**
  * @Annotation
  * @Target("PROPERTY")
  */
-final class WatchedField implements Annotation
+final class WatchedField implements MappingAttribute
 {
 
     /**
diff --git a/src/Watcher/EventListener/FlushListener.php b/src/Watcher/EventListener/FlushListener.php
index eb81af4..2000629 100644
--- a/src/Watcher/EventListener/FlushListener.php
+++ b/src/Watcher/EventListener/FlushListener.php
@@ -125,7 +125,7 @@ public function getUpdateHandler()
      * @return WatchedField|null
      * @throws \ReflectionException
      */
-    private function getWatchedFieldAnnotation(Reader $reader, WatchedEntity $entity, $field)
+    private function getWatchedFieldAnnotation(Reader $reader, WatchedEntity $entity, string $field): ?WatchedField
     {
 
         $dotPosition = strpos($field, '.');
@@ -159,7 +159,7 @@ private function getWatchedFieldAnnotation(Reader $reader, WatchedEntity $entity
     public function onFlush(OnFlushEventArgs $args)
     {
 
-        $em = $args->getEntityManager();
+        $em = $args->getObjectManager();
         $uow = $em->getUnitOfWork();
 
         $reader = $this->getAnnotationReader();
@@ -206,8 +206,6 @@ public function onFlush(OnFlushEventArgs $args)
 
                     // Associations
                     foreach ($uow->getScheduledCollectionUpdates() as $collectionUpdate) {
-                        /** @var $collectionUpdate \Doctrine\ORM\PersistentCollection */
-
 
                         if ($collectionUpdate->getOwner() === $entity) {
                             // This entity has an association mapping which contains updates.
@@ -231,6 +229,5 @@ public function onFlush(OnFlushEventArgs $args)
                 }
             }
         }
-
     }
 }
\ No newline at end of file
diff --git a/src/Watcher/EventListener/LoadListener.php b/src/Watcher/EventListener/LoadListener.php
index 200e47a..3d99c65 100644
--- a/src/Watcher/EventListener/LoadListener.php
+++ b/src/Watcher/EventListener/LoadListener.php
@@ -2,7 +2,7 @@
 
 namespace Watcher\EventListener;
 
-use Doctrine\ORM\Event\LifecycleEventArgs;
+use Doctrine\Persistence\Event\LifecycleEventArgs;
 use Watcher\Entity\LogAccessor;
 use Watcher\Repository\EntityLogRepository;
 
@@ -17,12 +17,7 @@ class LoadListener
     /** @var string */
     private $entityLogClassname;
 
-    /**
-     * LoadListener constructor.
-     *
-     * @param string $entityLogClassname
-     */
-    public function __construct($entityLogClassname)
+    public function __construct(string $entityLogClassname)
     {
         if(!class_exists($entityLogClassname)) {
             throw new \RuntimeException(sprintf('Invalid entity log classname "%s": Must be a full-qualified class name of the EntityLog.', $entityLogClassname));
@@ -36,12 +31,12 @@ public function __construct($entityLogClassname)
      */
     public function postLoad(LifecycleEventArgs $args)
     {
-        $entity = $args->getEntity();
+        $entity = $args->getObject();
 
         if ($entity instanceof LogAccessor) {
 
             /** @var EntityLogRepository $logRepo */
-            $logRepo = $args->getEntityManager()->getRepository($this->entityLogClassname);
+            $logRepo = $args->getObjectManager()->getRepository($this->entityLogClassname);
             $entity->setLogs($logRepo->getLogsFromEntity($entity));
         }
 
diff --git a/src/Watcher/UpdateHandler/LogHandler.php b/src/Watcher/UpdateHandler/LogHandler.php
index 758a337..533415e 100644
--- a/src/Watcher/UpdateHandler/LogHandler.php
+++ b/src/Watcher/UpdateHandler/LogHandler.php
@@ -21,11 +21,6 @@ class LogHandler implements UpdateHandler
     private $logLevel;
 
 
-    /**
-     * LogHandler constructor.
-     *
-     * @param LoggerInterface $logger
-     */
     public function __construct(LoggerInterface $logger)
     {
         $this->logger = $logger;
diff --git a/src/Watcher/Watcher.php b/src/Watcher/Watcher.php
index 97c3080..218fc0a 100644
--- a/src/Watcher/Watcher.php
+++ b/src/Watcher/Watcher.php
@@ -16,12 +16,7 @@
 class Watcher
 {
 
-    /**
-     * @param UpdateHandler $handler
-     *
-     * @return EventManager
-     */
-    public static function createEventManager(UpdateHandler $handler)
+    public static function createEventManager(UpdateHandler $handler): EventManager
     {
         $listener = FlushListener::createWithHandler($handler);
         $eventManager = new EventManager();
@@ -32,7 +27,7 @@ public static function createEventManager(UpdateHandler $handler)
     }
 
     /**
-     * @return bool
+     * @deprecated This method is deprecated and will be removed in doctrine/annotations 2.0. Annotations will be autoloaded in 2.0.
      */
     public static function registerAnnotations()
     {